Entanglement measure and dynamics of multiqubit systems: non-Markovian versus Markovian and generalized monogamy relations
Entanglement measure and dynamics of multiqubit systems: non-Markovian versus Markovian and generalized monogamy relations
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多量子位系统的纠缠测量和动力学:非马尔可夫与马尔可夫以及广义一夫一妻制关系
DOI:
10.1088/1367-2630/12/3/033020
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发表时间:
2010-03
影响因子:
3.3
通讯作者:
Xia, Yun-Jie
中科院分区:
文献类型:
--
作者:
Nguyen Ba An;Man, Zhong-Xiao;Xia, Yun-Jie
In this paper, we first present a simple measure for multiqubit entanglement based on the strategy of bipartite cuts and the measure of negativity. Then, we establish generalized monogamy inequalities and associated partition-dependent residual entanglement (PRE) accounting for arbitrary partitions of a multiqubit system. By virtue of the defined quantities, we investigate the entanglement dynamics of a system of N qubits, either in the Greenberger–Horne–Zeilinger (GHZ)-type state or in the W state, interacting with N independent reservoirs in both Markovian and non-Markovian regimes. We observe entanglement revivals of qubits at instantaneous points of disappearance or after a finite interval of abrupt vanishing due to the memory effect of non-Markovian reservoirs. We also follow the whole entanglement evolution in terms of the PRE to demonstrate the process of transition between the bipartite entanglement of all possible bipartitions and the multipartite entanglement. In particular, we show that the change in time of entanglement formats differs qualitatively for the GHZ-type and W states.
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DOI:
10.1088/0953-4075/41/15/155501
发表时间:
2008-08
影响因子:
1.6
作者:
Nguyen Ba An;Xia, Yun-Jie;Man, Zhong-Xiao
通讯作者:
Man, Zhong-Xiao
影响因子:
2.9
作者:
Zhu, Shi-Yao;Huang, Jie-Hui
通讯作者:
Huang, Jie-Hui
DOI:
10.1088/0953-4075/41/8/085503
发表时间:
2008-04
影响因子:
1.6
作者:
Man, Zhong-Xiao;Xia, Yun-Jie;An, Nguyen Ba
通讯作者:
An, Nguyen Ba
DOI:
10.1088/0953-4075/39/15/s09
发表时间:
2006-02
期刊:
Journal of Physics B: Atomic, Molecular and Optical Physics
影响因子:
--
作者:
Muhammed Yonac;Ting Yu;J. Eberly
通讯作者:
Muhammed Yonac;Ting Yu;J. Eberly
影响因子:
2.9
作者:
Bellomo, B.;Lo Franco, R.;Compagno, G.
通讯作者:
Compagno, G.